transaction: pass the name of the "undo" journal to the transaction
It is time for the transaction to be responsible for setting up the
undo data. It is necessary to move this logic into the transaction
because many more files are handled now, and the transaction is the
object tracking them all.
The value can be set to None if no undo should be set.
#require serve fifo
Test hangup signal in the middle of transaction
$ hg init
$ mkfifo p
$ hg serve --stdio < p 1>out 2>&1 &
$ P=$!
Do test while holding fifo open
$ (
> echo lock
> echo addchangegroup
> start=`date +%s`
> # 10 second seems much enough to let the server catch up
> deadline=`expr $start + 10`
> while [ ! -s .hg/store/journal ]; do
> sleep 0;
> if [ `date +%s` -gt $deadline ]; then
> echo "transaction did not start after 10 seconds" >&2;
> exit 1;
> fi
> done
> kill -HUP $P
> ) > p
$ wait
$ cat out
0
0
adding changesets
transaction abort!
rollback completed
killed!
$ ls -1d .hg/* .hg/store/*
.hg/00changelog.i
.hg/journal.bookmarks
.hg/journal.branch
.hg/journal.desc
.hg/journal.dirstate
.hg/requires
.hg/store
.hg/store/00changelog.i
.hg/store/00changelog.i.a
.hg/store/journal.phaseroots